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CR 80 Question!!!!

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I just bought a 1996 cr80 in rough shape. I got the bike started and the guy that I bought it from said he just changed the plug. The bike will idle fine, rev fine in neutral, but as soon as I put it in gear and try to move it bogs and dies out no matter what I do.

any suggestions? I put in clean gas, cleaned the filter and plug

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Piston and rings.

Any other suggestions, I dont think that is the problem. Shoudl I clean the carb? My dad thinks its clogged

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If it hasn't been rebuilt since '96, it's time.

Definately! also, it would always run better with a fresh top end anyways... always good to know when stuff has been done!

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check and make sure that the clutch cable isn't stretched and not disengaging the clutch plates when you put it in gear. just another thought

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this might sound stupid, but are you giving it gas when you shift until its warm?

does it sound stupid??? yes.. but does it happen???? ALL THE TIME! 🙂

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***c so I guess the rings are shot cause I checked everything else. What else do I need besides this???

http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=798m04900&store=Main&productId=p798m04900&catId=&leafCatId=

I dont think the head needs to be honed, So should I use the stock bore? Is this kit all I need? thanks

You should also buy a top end gasket kit.

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Did you check your reeds blue?

yeaI checked they seem to be ok.

So just a recap since this is my first time fixing a top end. I need:

Gasket kit,

and the piston kit with piston, ring, circlip, wrist pin?

BTW how hard is it? afternoons worth of work?

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Since the bike doesn't have a powervalve it is really easy to change a top end. I know from experience because I had a kx 80 bored to a 101cc and I had to replace the piston every 10 hours. For your first time changing a top end I would take it slow and not rush it but it should take about an hour to do.

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yeaI checked they seem to be ok.

So just a recap since this is my first time fixing a top end. I need:

Gasket kit,

and the piston kit with piston, ring, circlip, wrist pin?

BTW how hard is it? afternoons worth of work?

and a wrist pin bearing, make sure you put a rag or something to cover the hole after the cylinder is off so you dont lose any parts

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http://rockymountainatv.com/Product_Details.atv?pid=00023743

http://rockymountainatv.com/Product_Details.atv?pid=00023531

http://rockymountainatv.com/Machine_Details.atv?pid=00024296&cat=ENGI&type=ENGINE&name=Wiseco+Piston+Wristpin+Bearings&make=HONDA&model=CR80R&year=1996&status=

So these three things?

Also will the motor be fairly reliable after this? I just bought the bike for my girl to put around on and for me to mess with/tweak when I have nothing to do

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